JP7450396B2 - Sickness prediction system, vehicle equipped with the sickness prediction system, control method and program for the sickness prediction system - Google Patents

Description

The present invention relates to a motion sickness prediction system, a vehicle equipped with the motion sickness prediction system, and a method and program for controlling the motion sickness prediction system.

2. Description of the Related Art Conventionally, motion sickness countermeasure devices are known that can detect motion sickness and reduce the degree of motion sickness. For example, Patent Document 1 discloses a passenger state detection unit that detects the state of a passenger in a vehicle and generates passenger state information, and a vehicle state detection unit that detects information regarding the state of the vehicle and generates vehicle state information. a detection unit, a data processing storage unit that stores passenger state information, vehicle state information, and information on a motion sickness determination threshold used to determine whether or not the passenger is in a motion sickness state; and a data processing storage unit. A motion sickness determination unit that determines whether or not the passenger is in a state of motion sickness based on information stored by the section, and determines whether or not to take countermeasures when it is determined that the passenger is in a state of motion sickness. A motion sickness countermeasure device is described which includes a motion sickness countermeasure section and a countermeasure section that takes countermeasures to reduce the degree of motion sickness when the motion sickness determining section determines to take countermeasures.

Japanese Patent Application Publication No. 2006-34576

However, the motion sickness countermeasure device described in Patent Document 1 detects motion sickness based on behavioral and physiological changes, so there is a problem that the accuracy of motion sickness detection is not sufficient. Another problem is that in order to accurately detect motion sickness, it is necessary to detect various types of data.

The present invention has been made in view of such problems, and its main purpose is to provide a motion sickness prediction system that can detect motion sickness from the amount of motion of the head. Another object of the present invention is to provide a vehicle equipped with such a car sickness prediction system.

The present invention employs the following means to achieve at least one of the above objects.

The motion sickness prediction system of the present invention includes:
An amount of movement of the head of the occupant is calculated based on the imaging information output from an imaging means that images an occupant riding in the vehicle and outputs the imaging information, and the amount of movement of the head of the occupant is set to a predetermined threshold. A control means that determines that the occupant is in a state of intoxication when it is determined that the above is the case;
It is characterized by having
It is something.

This motion sickness prediction system calculates the amount of motion of the occupant's head based on the imaging information output from the imaging means that images the occupant riding in the vehicle, and calculates the amount of motion of the occupant's head when the amount of motion of the occupant's head is equal to or greater than a predetermined threshold. If it is determined that the occupant is in a state of intoxication. In this way, the state of motion sickness of the occupant can be determined from a small parameter, ie, the amount of motion of the occupant's head.

In the motion sickness prediction system of the present invention, the control means may be configured to control information regarding the head of the occupant included in a plurality of pieces of imaging information output from the imaging means that has imaged the occupant a plurality of times, and an imaging interval of the imaging means. The amount of movement of the head of the occupant is calculated based on the information, and when it is determined that the amount of movement of the head of the occupant is equal to or greater than a predetermined threshold value, it is determined that the occupant is in a state of intoxication. You can also use it as In this way, the state of motion sickness of the occupant can be determined from a small parameter, ie, the amount of motion of the occupant's head.

In the motion sickness prediction system of the present invention adopting this aspect, the control means calculates a virtual line connecting the right shoulder and left shoulder of the occupant based on information regarding the right shoulder and left shoulder of the occupant included in the imaging information. The amount of motion of the occupant's head is calculated based on a change in the slope of the virtual line, and if it is determined that the amount of motion of the occupant's head is equal to or greater than a predetermined threshold, the occupant is in a state of motion sickness. The feature may be that it is determined that In general, image information captured by an imaging means is two-dimensional information, so it may be difficult to accurately capture changes in "depth." On the other hand, by using changes in the slope of the virtual line connecting the right shoulder and left shoulder of the occupant, the amount of motion of the occupant's head can be calculated more accurately.

In the motion sickness prediction system of the present invention, the control means calculates the amount of motion of the occupant's head based on the imaging information and speed change information that is information regarding a speed change occurring in the vehicle, and The present invention may be characterized in that when it is determined that the amount of motion of the head is equal to or greater than a predetermined threshold value, it is determined that the occupant is in a state of intoxication. By doing so, the amount of movement of the vehicle can be taken into consideration when calculating the amount of movement of the occupant's head, so that the amount of movement of the occupant's head can be calculated more accurately. Note that the term "speed change information" herein refers to information regarding speed changes, and includes not only increases and decreases in speed, but also values and amounts of changes in acceleration and jerk (jerking).

In the motion sickness prediction system of the present invention, the control means includes the imaging information, steering wheel angle information that is information about the steering angle of a steering wheel provided in the vehicle, and speed information that is information about the speed of the vehicle. The amount of motion of the head of the occupant is calculated based on the amount of motion of the head of the occupant, and when it is determined that the amount of motion of the head of the occupant is equal to or greater than a predetermined threshold value, it is determined that the occupant is in a state of intoxication. good. Information about the steering angle of the steering wheel operated by the occupant and information about the speed of the vehicle are both pieces of information that greatly affect the momentum of the vehicle, so these pieces of information are taken into consideration when calculating the momentum of the occupant's head. As a result, the amount of motion of the vehicle can be taken into account, so that the amount of motion of the occupant's head can be calculated more accurately.

The motion sickness prediction system of the present invention may be characterized by comprising a threshold value changing means for changing the value of the threshold value. By doing this, since there are individual differences in whether or not the occupant feels motion sickness, it is possible to predict motion sickness corresponding to individual differences.

In the motion sickness prediction system of the present invention that adopts this aspect, the threshold value changing means recognizes the face of the passenger based on the imaged information, and sets the threshold value to a value for each passenger individually stored in advance in correspondence with the passenger's face. It may be characterized by changing to a threshold value. Since there are individual differences in how people experience motion sickness, by changing the pre-stored threshold values for individual passenger thresholds that correspond to the faces of passengers, it is possible to predict motion sickness that takes into account individual differences. .

In the motion sickness prediction system of the present invention that adopts this aspect, the threshold value changing means may include an amount of change in steering wheel angle, which is an amount of change in the steering angle of the steering wheel provided in the vehicle per unit time, and an amount of change in the steering angle of the steering wheel provided in the vehicle; Either the accelerator pedal angle variation, which is the variation in the depression angle of the pedal, or the brake pedal angle variation, which is the variation in the depression angle of the brake pedal provided in the vehicle, is a predetermined default value. The feature may be that when the threshold value is exceeded, the value of the threshold value is changed. It is known that whether a passenger feels sick or not is largely influenced by the driver's steering wheel, accelerator, and brake operations, so it is based on the amount of change in steering wheel angle, the amount of change in accelerator pedal angle, and the amount of change in brake pedal angle. By changing the value of the motion sickness determination threshold value, the state of motion sickness can be determined more accurately.

In the motion sickness prediction system of the present invention that adopts this aspect, the threshold value changing means is configured to detect the road at the current position from pre-stored road information based on the position information detected by the position information detection means for detecting the position of the vehicle. The present invention may be characterized in that information is extracted and the value of the threshold value is changed in accordance with the road information. It is known that the condition of the road the vehicle is traveling on has a large effect on whether or not the occupant feels motion sickness, so by changing the threshold according to the road condition the vehicle is traveling on, the state of motion sickness can be determined more accurately. can do. Here, "road information" refers to information that affects the amount of movement of the head, such as vibrations, when the vehicle travels, such as unevenness, undulations, and curvature of the road.

The vehicle of the present invention includes:
an imaging means for imaging an occupant riding in a vehicle and outputting imaging information;
The amount of motion of the head of the occupant is calculated based on the imaging information outputted from the imaging means, and if it is determined that the amount of motion of the head of the occupant is equal to or greater than a predetermined threshold, the occupant is determined to be sick. a control means for determining that the state is
It is characterized by having
It is something.

In this vehicle, the amount of motion of the occupant's head is calculated based on the imaging information output from the imaging means that images the occupant riding in the vehicle, and it is determined that the amount of motion of the occupant's head is greater than or equal to a predetermined threshold. In this case, it is determined that the occupant is in a state of intoxication. By doing so, the state of motion sickness of the occupant can be determined from a small parameter, ie, the amount of motion of the occupant's head.

The method for controlling the motion sickness prediction system of the present invention is as follows:
An amount of movement of the head of the occupant is calculated based on the imaging information output from an imaging means that images an occupant riding in the vehicle and outputs the imaging information, and the amount of movement of the head of the occupant is set to a predetermined threshold. A control method for a motion sickness prediction system, comprising: a control means that determines that the occupant is in a state of motion sickness when it is determined that the occupant is in a state of motion sickness,
The amount of motion of the head of the occupant is calculated based on the imaging information outputted from the imaging means, and if it is determined that the amount of motion of the head of the occupant is equal to or greater than a predetermined threshold, the occupant is determined to be sick. a determination step of determining that the state is the state;
characterized by comprising;
It is something.

The control method of this motion sickness prediction system calculates the amount of motion of the head of the occupant based on the imaging information output from the imaging means that images the occupant riding in the vehicle, and sets the amount of motion of the head of the occupant to a predetermined threshold. If it is determined that the above is the case, it is determined that the occupant is in a state of intoxication. In this way, the state of motion sickness of the occupant can be determined from a small parameter, ie, the amount of motion of the occupant's head.

In the method for controlling a motion sickness prediction system of the present invention, the method for controlling the motion sickness prediction system may include various configurations included in any of the motion sickness prediction systems described above, or may include any of the motion sickness prediction systems described above. You may add steps to achieve this function.

The program of the present invention is a program for causing one or more computers to execute each step of a method for controlling a motion sickness prediction system. This program may be recorded on a computer-readable storage medium (for example, hard disk, ROM, CD, DVD, flash memory, etc.), or may be recorded on a transmission medium (communication network such as the Internet or wired/wireless LAN). The information may be sent from one computer to another via a computer, or may be exchanged in any other form. Further, even if the program is executed by a device that executes each step of the control method, the device in which the program is executed and the device in which the process is performed may be different. In either case, the same effect as the control method described above can be obtained by having one computer execute this program or by having multiple computers share and execute each step.

FIG. 1 is a block diagram for explaining electrical connections of a vehicle 20. As shown in FIG. FIG. 2 is a flowchart showing an example of a motion sickness determination processing routine.

Next, a vehicle 20 that is an example of an embodiment of the present invention will be described in detail. The embodiments and drawings described below illustrate some of the embodiments of the present invention, and are not used for the purpose of limiting the configurations to these, and may be used within the scope of the gist of the present invention. It can be changed as appropriate. Note that in each figure, corresponding components are given the same or similar symbols. Furthermore, by showing an example of a method of controlling the motion sickness prediction system in the vehicle 20, an example of the control method of the motion sickness prediction system of the present invention will be clarified.

As shown in FIG. 1, a vehicle 20 that is an example of an embodiment of the present invention includes a camera 22 that images an occupant, a speed sensor 24 that measures the speed of the vehicle 20, and imaging information output from the camera 22 and The vehicle also includes a control unit 30 that predicts motion sickness of the occupant based on speed information output from the speed sensor 24. By doing so, it is possible to predict the sickness of the occupant based on the speed change information calculated from the imaging information output from the imaging means and the speed information output from the speed sensor 24.

The camera 22 is a known digital camera that corresponds to the imaging means of the present invention, and continuously images the area around the vehicle seat including the occupant at predetermined imaging intervals, and outputs the images as image information.

The speed sensor 24 is a known speed sensor, and outputs the speed of the vehicle 20 to the control unit 30 as speed information.

The control unit 30 corresponds to the control means of the present invention, and is configured as a microprocessor centered on a CPU 31. The control unit 30 temporarily stores a ROM 32 storing various programs including a motion sickness determination processing routine for predicting motion sickness of an occupant, and image information outputted from the camera 22 and speed information outputted from the speed sensor 24. A RAM 33 for storing data in the memory, a storage means 34 for storing various information such as a motion sickness determination threshold, and an interface 35 (hereinafter referred to as "I/F 35") for transmitting and receiving various signals to and from the camera 22 are connected to a bus 36. electrically connected via. The control unit 30 determines whether or not the occupant is in a state of intoxication based on the imaging information output from the camera 22. Specifically, by executing the following motion sickness determination processing routine, it is determined whether or not the occupant is in a motion sickness state. Note that this control unit 30 may perform only the process of determining whether or not the person is in a state of intoxication, or may be a part of a control unit such as an ECU provided in the vehicle.

Next, an example of a method for determining motion sickness for determining whether or not an occupant is in a motion sickness state will be described with reference to FIG. Here, FIG. 2 is a flowchart showing an example of a motion sickness determination processing routine, and this motion sickness determination processing routine is repeatedly executed when imaging information is output from the camera 22.

When this motion sickness determination processing routine is executed, the CPU 31 acquires the imaging information output from the camera 22 (step S110), acquires the speed information output from the speed sensor 24, and acquires speed change information from the speed information. is calculated (step S120).

Subsequently, the CPU 31 calculates the amount of motion of the occupant's head based on the speed change information and the imaging information (step S130). Specifically, the position of the occupant's head included in each successive imaged information is detected, and based on the positional relationship with target information (for example, a headrest, etc.) included in each of the consecutive imaged information and the imaging interval, the occupant's head position is detected. By calculating the amount of change in the position of the head of the passenger, and dividing the value of the amount of change by a predetermined imaging interval, the amount of movement, the amount of movement of the head of the occupant due to the movement of the occupant, is calculated. In addition, by calculating the momentum of the vehicle 20 from the speed change information of the vehicle 20, the momentum of the occupant's head due to the movement of the vehicle 20 is calculated, and the momentum of the occupant's head due to the occupant's momentum is calculated. The amount of movement of the head caused by the movement of the vehicle 20 is combined to calculate the amount of movement of the head of the occupant.

Subsequently, the CPU 31 reads the motion sickness determination threshold from the storage means 34, determines whether the amount of exercise calculated in step S130 is equal to or higher than the motion sickness determination threshold (step S140), and if it is determined that the amount of exercise is equal to or higher than the motion sickness determination threshold. Then, a motion sickness signal is output (step S150), and this routine ends. By doing so, it is possible to determine whether the occupant is in a motion sickness state based on the amount of exercise calculated based on the imaging information.

On the other hand, if it is determined in step S140 that the amount of exercise calculated in step S130 is less than the motion sickness determination threshold, this routine ends. Additionally, in such a case, since no motion sickness signal is output, it can be determined that the person is not in a motion sickness state.

According to the vehicle 20 of the embodiment described in detail above, the amount of movement of the occupant's head is calculated based on the amount of movement of the head caused by the movement of the occupant calculated based on the imaging information output from the camera 22 ( Step S130), it is determined whether the amount of motion of the occupant's head is equal to or higher than a predetermined motion sickness determination threshold (step S140), and if it is determined that it is equal to or higher than the motion sickness determination threshold, a motion sickness signal is output. (Step S150). By doing so, it is possible to determine the state of motion sickness of the occupant based on the amount of motion of the occupant's head.

Further, in step S130, the position of the occupant's head included in each successive imaged information is detected, and the position of the occupant's head is detected based on the positional relationship with target information (for example, a headrest, etc.) included in each of the consecutive imaged information. By calculating the amount of change in position and dividing the amount of change by a predetermined imaging interval to calculate the amount of movement, it is possible to determine the state of motion sickness of the occupant from a small parameter, the amount of movement of the occupant's head. can.

Furthermore, when calculating the amount of movement of the head in step S130, the amount of movement of the head caused by the movement of the vehicle 20 calculated based on the speed information is added to the amount of movement of the head caused by the movement of the vehicle occupant calculated based on the imaging information. By compositing, it is possible to calculate the amount of head movement more accurately than when calculating the amount of head movement only from the amount of head movement caused by the occupant's movement. The state of intoxication can be determined.

It goes without saying that the present invention is not limited to the embodiments described above, and can be implemented in various forms as long as they fall within the technical scope of the present invention.

For example, in the embodiment described above, the amount of exercise is calculated based on the relative position change of the occupant's head included in the imaging information and the imaging interval, but the position of the occupant's right shoulder and left shoulder included in the imaging information is The amount of motion of the occupant's head may be calculated based on a change in the slope of an imaginary line connecting the right shoulder and the left shoulder. In general, image information captured by an imaging means is two-dimensional information, so it may be difficult to accurately capture changes in "depth." In contrast, by using the correlation between the change in the slope of the virtual line connecting the occupant's right shoulder and left shoulder and the movement of the head, it is possible to more accurately calculate the amount of motion of the occupant's head. .

In the embodiment described above, the amount of exercise for estimating motion sickness is calculated based on the relative position change of the occupant's head included in the imaging information and the imaging interval. Then, the amount of exercise for estimating motion sickness may be calculated based on the relative position change of the amount of movement of the occupant's eyeballs included in the imaging information and the imaging interval. It is known that when the amount of movement of the eyeballs is large, it is easy to feel a state of motion sickness, so by using the amount of movement of the eyeballs, it is possible to more accurately determine the state of motion sickness of the occupant.

In the embodiment described above, in step S130, the amount of motion of the head due to the movement of the vehicle 20 is calculated based on the speed information output from the speed sensor 24. The amount of movement of the head caused by the movement of the vehicle may be calculated based on the steering wheel angle information regarding the steering angle. Specifically, the magnitude and direction of the momentum caused by the movement of the vehicle 20 are calculated from the steering angle of the steering wheel and the vehicle speed, and this is estimated to be the amount of momentum of the head caused by the movement of the vehicle. do. By doing so, the amount of motion of the occupant's head can be calculated more accurately than in the case where the steering wheel angle information is not used, so that the motion sickness state of the occupant can be determined more accurately.

In the embodiment described above, the camera 22 is provided, but a plurality of cameras may be provided. By using imaging information from multiple cameras, movement of the occupant's head can be detected more accurately. At this time, the cameras may be provided on both the right and left sides of the front right side and the front left side of the vehicle seat. By doing this, the imaging information from the camera located on the right side and the imaging information from the camera located on the left side complement each other, making it possible to more accurately detect the movement of the occupant's head. .

In the embodiment described above, the camera 22 is a digital camera, but the camera 22 may be a digital video camera. Also in this case, the same effects as in the embodiment described above can be obtained.

In the embodiment described above, it is assumed that the motion sickness determination threshold is predetermined in the storage means 34, but an input means (for example, a touch panel, a numeric keypad, etc.) for inputting the motion sickness determination threshold is provided, and the motion sickness determination threshold can be input from the input means. The value may be stored in the storage means 34 as the motion sickness determination threshold. Whether a passenger feels intoxicated or not depends on individual differences among the occupants, so by setting a threshold value depending on the occupant, it is possible to determine the intoxication condition according to individual differences among the occupants.

In the embodiment described above, it is assumed that the motion sickness determination threshold is predetermined in the storage means 34, but a display means (for example, a liquid crystal monitor, etc.) for displaying the motion sickness determination threshold and a changing means for changing the motion sickness determination threshold are provided. (for example, a touch panel, a numeric keypad, etc.), displays the motion sickness determination threshold stored in the storage means 34 on the display means, and also displays the input information input from the input means (for example, up, up, down, down, The motion sickness determination threshold may be changed based on a signal indicating that the numerical value is to be changed. Whether a passenger feels intoxicated or not depends on individual differences among the occupants, so by setting a threshold value depending on the occupant, it is possible to determine the intoxication condition according to individual differences among the occupants.

In the embodiment described above, it is assumed that the motion sickness determination threshold is preset in the storage means 34, but the passenger individual threshold corresponding to the face information of the passenger is stored in advance in the storage means 34, and the camera 22 images the passenger. At this time, an individual passenger threshold value corresponding to the facial information of the passenger may be read out and used as the threshold value. Whether a passenger feels intoxicated or not depends on individual differences among the occupants, so by setting a threshold value depending on the occupant, the intoxication state can be calculated according to individual differences among the occupants.

In the embodiment described above, the threshold for determining motion sickness is set in advance in the storage means 34, but the steering wheel angle, which is the amount of change in the steering angle of the steering wheel per unit time when the occupant operates the steering wheel, The value of the motion sickness determination threshold may be changed based on the amount of change. For example, the value of the motion sickness determination threshold may be increased when the amount of change in the steering wheel angle is small, and the value of the motion sickness determination threshold may be decreased when the amount of change in the steering wheel angle is large. It is known that the driver's steering wheel operation has a large effect on whether or not the occupant feels motion sickness, so by changing the motion sickness determination threshold value based on the amount of change in the steering wheel angle, it is possible to more accurately determine the state of motion sickness. can be determined.

In the embodiment described above, the motion sickness determination threshold is preset in the storage means 34, but it is the amount of change in angle per unit time of the depression angle of the accelerator pedal when the occupant operates the accelerator pedal. The value of the motion sickness determination threshold may be changed based on the amount of change in the accelerator pedal angle. For example, when the amount of change in the accelerator pedal angle is small, the value of the motion sickness determination threshold may be increased, and when the amount of change in the accelerator pedal angle is large, the value of the motion sickness determination threshold may be decreased. It is known that the driver's accelerator work has a large effect on whether or not the occupant feels sick. Therefore, by changing the threshold value for determining motion sickness based on the amount of change in the accelerator pedal angle, the state of motion sickness can be more accurately determined. can be determined.

In the embodiment described above, the motion sickness determination threshold is preset in the storage means 34, but it is the amount of change in angle per unit time of the depression angle of the brake pedal when the occupant operates the brake pedal. The value of the motion sickness determination threshold may be changed based on the amount of change in the brake pedal angle. For example, when the amount of change in the brake pedal angle is small, the value of the motion sickness determination threshold may be increased, and when the amount of change in the brake pedal angle is large, the value of the motion sickness determination threshold may be decreased. It is known that the driver's brake work has a large effect on whether or not the occupant feels motion sickness. Therefore, by changing the motion sickness determination threshold value based on the amount of change in the brake pedal angle, the state of motion sickness can be determined more accurately. can be determined.

In the embodiment described above, the motion sickness determination threshold value is preset in the storage means 34, but it is assumed that the motion sickness determination threshold value is determined in advance in the storage means 34. Based on this, road information at the current location may be extracted from pre-stored map information, and the threshold may be changed in accordance with the road information. For example, if the road on which the vehicle is currently traveling has severe ups and downs, or if the road surface has unevenness, the threshold value may be reduced. It is known that road conditions have a large influence on whether or not a passenger feels sick, so by changing the threshold value for determining motion sickness based on the road conditions, it is possible to more accurately determine the state of motion sickness. .

In the embodiment described above, the amount of motion of the head due to the movement of the vehicle is calculated based on the speed information output from the speed sensor 24, but the method of outputting the speed information is limited to the speed sensor 24. Instead, output signals from various sensors installed in known vehicles (for example, an axle sensor that detects the number of rotations of the axle) may be used, or output signals obtained from a position information system (for example, a GPS system) may be used. The speed information may be calculated from the mobility and travel time. In either case, the same effects as in the embodiment described above can be obtained.

In the embodiment described above, the amount of motion of the head due to the movement of the vehicle is calculated based on the speed information output from the speed sensor 24, but the speed information may be calculated based on the acceleration output from an acceleration sensor or the like. The amount of movement of the head caused by the movement of the vehicle may be calculated based on the vehicle movement, jerk, etc. In either case, the same effects as in the embodiment described above can be obtained.

In the embodiment described above, the amount of motion of the head due to the movement of the vehicle is calculated based on the speed information output from the speed sensor 24 in step S120, but step S120 may be omitted. By doing so, the processing routine can be simplified.

As shown in the embodiments described above, the present invention can be used in the field of vehicle control, particularly as a system for predicting occupant motion sickness.

20... Vehicle, 22... Camera, 24... Speed sensor, 30... Control unit, 31... CPU, 32... ROM, 33... RAM, 34... Storage means, 35... Interface, 36... Bus.

Claims (10)

An amount of movement of the head of the occupant is calculated based on the imaging information output from an imaging means that images an occupant riding in the vehicle and outputs the imaging information, and the amount of movement of the head of the occupant is set to a predetermined threshold. control means that determines that the occupant is in a state of intoxication when it is determined that the occupant is in a state of intoxication;
The control means further calculates a virtual line connecting the right shoulder and left shoulder of the passenger based on information regarding the right shoulder and left shoulder of the passenger included in the imaging information, and calculates a virtual line connecting the right shoulder and left shoulder of the passenger based on a change in the slope of the virtual line. An amount of motion of the head of the occupant is calculated, and when it is determined that the amount of motion of the head of the occupant is equal to or greater than a predetermined threshold value, it is determined that the occupant is in a state of motion sickness.
Sickness determination system. An amount of movement of the head of the occupant is calculated based on the imaging information output from an imaging means that images an occupant riding in the vehicle and outputs the imaging information, and the amount of movement of the head of the occupant is set to a predetermined threshold. A control means that determines that the occupant is in a state of intoxication when it is determined that the above is the case;
The control means further controls the head of the occupant based on the imaging information, steering wheel angle information that is information about the steering angle of a steering wheel provided in the vehicle, and speed information that is information about the speed of the vehicle. If the amount of movement of the head of the occupant is determined to be equal to or greater than a predetermined threshold value, it is determined that the occupant is in a state of motion sickness.
Sickness determination system. The control means is configured to control the head of the occupant based on information regarding the head of the occupant included in a plurality of pieces of imaging information output from the imaging means that has imaged the occupant a plurality of times, and information regarding the imaging interval of the imaging means. If the amount of movement of the head of the occupant is determined to be equal to or greater than a predetermined threshold value, it is determined that the occupant is in a state of motion sickness.
The motion sickness determination system according to claim 1 or 2. The control means calculates the amount of movement of the head of the occupant based on the imaging information and speed change information that is information regarding a speed change occurring in the vehicle, and calculates the amount of movement of the head of the occupant based on the image information and speed change information that is information regarding a speed change occurring in the vehicle. characterized in that the occupant is determined to be in a state of intoxication when it is determined that the condition is equal to or higher than a threshold value,
The motion sickness determination system according to claim 1 or 2. Threshold value changing means for changing the value of the threshold value;
It is characterized by having
The motion sickness determination system according to any one of claims 1 to 4. The threshold value changing means recognizes the face of the passenger based on the imaged information, and changes the threshold value to a value of the passenger individual threshold stored in advance in correspondence with the face of the passenger.
The motion sickness determination system according to claim 5. The threshold value changing means includes a steering wheel angle change amount that is the amount of change in the steering angle of the steering wheel provided on the vehicle per unit time, and an accelerator pedal angle change that is the amount of change in the depression angle of the accelerator pedal provided on the vehicle. changing the value of the threshold when either the brake pedal angle change amount or the change amount of the brake pedal angle that is the change amount of the depression angle of the brake pedal provided in the vehicle exceeds a predetermined predetermined value. characterized by
The motion sickness determination system according to claim 5. The threshold value changing means extracts road information of the current position from pre-stored road information based on the position information detected by the position information detection means for detecting the position of the vehicle, and adjusts the threshold value according to the road information. characterized by changing the value of
The motion sickness determination system according to claim 5. an imaging means for imaging an occupant riding in a vehicle and outputting imaging information;
The amount of motion of the head of the occupant is calculated based on the imaging information outputted from the imaging means, and if it is determined that the amount of motion of the head of the occupant is equal to or greater than a predetermined threshold, the occupant is determined to be sick. a control means for determining that the state is
Equipped with
The control means further calculates a virtual line connecting the right shoulder and left shoulder of the passenger based on information regarding the right shoulder and left shoulder of the passenger included in the imaging information, and calculates a virtual line connecting the right shoulder and left shoulder of the passenger based on a change in the slope of the virtual line. An amount of motion of the head of the occupant is calculated, and when it is determined that the amount of motion of the head of the occupant is equal to or greater than a predetermined threshold value, it is determined that the occupant is in a state of motion sickness.
vehicle. an imaging means for imaging an occupant riding in a vehicle and outputting imaging information;
The amount of motion of the head of the occupant is calculated based on the imaging information outputted from the imaging means, and if it is determined that the amount of motion of the head of the occupant is equal to or greater than a predetermined threshold, the occupant is determined to be sick. a control means for determining that the state is
Equipped with
The control means further controls the head of the occupant based on the imaging information, steering wheel angle information that is information about the steering angle of a steering wheel provided in the vehicle, and speed information that is information about the speed of the vehicle. If the amount of movement of the head of the occupant is determined to be equal to or greater than a predetermined threshold value, it is determined that the occupant is in a state of motion sickness.
vehicle.

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